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External Certification

As part of our commitment to provide the best possible quality and service, Calders and Grandidge are accredited and audited by a number of external agencies.

Calders and Grandidge Certificates

Click on one of the links below to view and download our certificates.

Assessment Certificates

UVDB Registration - 058336

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UVDB Audit Results

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Link-up Engage Registration — 073669

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WPA Benchmark 2014

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FORS Scheme

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EN14229 - CE Mark

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ISO/OHSAS Certificates

ISO 14001:2015

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OHSAS 18001:2007

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ISO 22301:2012 — Business Continuity

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ISO 9001:2015 + NHSS 4

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PEFC/FSC Certificates

PEFC - BMT-PEFC-0123

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FSC - TT-COC-001098

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Insurance Certificates

Public Liability

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Employers' Liability

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Declarations of Performance

PMCI - Imported Pseudotsuga Menziesii Creosote (Douglas Fir) Treated Pole

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PMGI - Imported Pseudotsuga Menziesii Green (Douglas Fir) Treated Pole

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PSCI - Imported Pinus Sylvestris (Scots Pine) Creosote Treated Pole

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PSGI - Imported Pinus Sylvestris (Scots Pine) Green Treated Pole

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